Home / 39,915.92-55,070.60-25,778.32

Finding the Fourth Proportional to 39,915.92, 55,070.60 and 25,778.32

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Solution

The fourth proportional to 39,915.92, 55,070.60 and 25,778.32 is: 35,565.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,915.92 : 55,070.60 = 25,778.32 : x
  2. Step 2: Convert to fraction form
    39,915.92/55,070.60 = 25,778.32/x
  3. Step 3: Cross multiply
    39,915.92x = 55,070.60 × 25,778.32
  4. Step 4: Simplify right side
    39,915.92x = 1,419,627,549.39
  5. Step 5: Solve for x
    x = 1,419,627,549.39/39,915.92
  6. Step 6: Final answer
    x = 35,565.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.